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// socket_bsd.go -- Socket handling specific to *BSD based systems.

// Copyright 2010 The Go Authors. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

package syscall

const SizeofSockaddrInet4 = 16

const SizeofSockaddrInet6 = 28

const SizeofSockaddrUnix = 110

type RawSockaddrInet4 struct {

        Len uint8;

        Family uint8;

        Port uint16;

        Addr [4]byte /* in_addr */;

        Zero [8]uint8;

}

func (sa *RawSockaddrInet4) setLen() Socklen_t {

        sa.Len = SizeofSockaddrInet4

        return SizeofSockaddrInet4

}

type RawSockaddrInet6 struct {

        Len uint8;

        Family uint8;

        Port uint16;

        Flowinfo uint32;

        Addr [16]byte /* in6_addr */;

        Scope_id uint32;

}

func (sa *RawSockaddrInet6) setLen() Socklen_t {

        sa.Len = SizeofSockaddrInet6

        return SizeofSockaddrInet6

}

type RawSockaddrUnix struct {

        Len uint8;

        Family uint8;

        Path [108]int8;

}

func (sa *RawSockaddrUnix) setLen(n int) {

        sa.Len = uint8(3 + n) // 2 for Family, Len; 1 for NUL.

}

func (sa *RawSockaddrUnix) getLen() (int, error) {

        if sa.Len < 3 || sa.Len > SizeofSockaddrUnix {

                return 0, EINVAL

        }

        n := int(sa.Len) - 3 // subtract leading Family, Len, terminating NUL.

        for i := 0; i < n; i++ {

                if sa.Path[i] == 0 {

                        // found early NUL; assume Len is overestimating.

                        n = i

                        break

                }

        }

        return n, nil

}

type RawSockaddr struct {

        Len uint8;

        Family uint8;

        Data [14]int8;

}

// BindToDevice binds the socket associated with fd to device.

func BindToDevice(fd int, device string) (err error) {

        return ENOSYS

}

func anyToSockaddrOS(rsa *RawSockaddrAny) (Sockaddr, error) {

        return nil, EAFNOSUPPORT

}